Radiation protection dosimetry最新文献

Effect of elevation on cumulative radiofrequency exposure from multiple communication towers. 海拔高度对来自多个通信塔的累积射频暴露的影响。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2025-06-29 DOI: 10.1093/rpd/ncaf068

Samuel Osei, Emmanuel Quarshie, Collins Kafui Azah, Abdul-Razak Fuseini, Richard Dogbey, Philip Deatanyah, Godfred Bright Hagan, Joanna Aba Modupeh Hodasi, Frederick Sam, Joseph Kwabena Amoako

引用次数: 0

Small-field measurements in 3D polymer gel dosimetry using optical computed tomography. 光学计算机断层扫描在三维聚合物凝胶剂量测定中的小场测量。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2025-06-23 DOI: 10.1093/rpd/ncaf066

Hiraku Kawamura, Yoshitomo Araki, Yuichi Sato, Masumi Uehara

引用次数: 0

Machine learning-based estimation of occupational radiation dose in interventional cardiology. 基于机器学习的介入心脏病学职业辐射剂量估计。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2025-06-20 DOI: 10.1093/rpd/ncaf064

Kevser A Hışıroğlu, Ozan Toker, Melis T Özşahin, Orhan İçelli

{"title":"Machine learning-based estimation of occupational radiation dose in interventional cardiology.","authors":"Kevser A Hışıroğlu, Ozan Toker, Melis T Özşahin, Orhan İçelli","doi":"10.1093/rpd/ncaf064","DOIUrl":"https://doi.org/10.1093/rpd/ncaf064","url":null,"abstract":"In interventional cardiology, occupational radiation exposure for medical personnel can reach high levels, underscoring the critical need for effective radiation protection and monitoring methods. This study employs machine learning algorithms to estimate radiation doses received by personnel within a virtual 3D angiography room designed to reflect realistic clinical settings. Monte Carlo simulations generated radiation data across various scenarios, accounting for personnel positions, radiation source distance, and exposure angles typical in angiography. The simulation data were used to train five machine-learning algorithms (Gradient Boosting, K-nearest neighbors, Random Forest, Linear Regression, and Decision Tree). Key findings showed that machine learning models, particularly Gradient Boosting, could effectively predict dose levels by utilizing spatial and operational parameters without requiring physical dosemeter. This study provides a framework that could streamline radiation monitoring practices, making dose assessments more accessible and efficient for routine use in clinical environments.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144512420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Establishment of diagnostic reference levels for dental cone beam computed tomography in Tabriz, Iran. 在伊朗大不里士建立牙科锥束计算机断层扫描诊断参考水平。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2025-06-19 DOI: 10.1093/rpd/ncaf063

Sina Mardfar, Mona Fazel Ghaziyani, Arman Saeedi Vahdat, Davood Khezerloo

{"title":"Establishment of diagnostic reference levels for dental cone beam computed tomography in Tabriz, Iran.","authors":"Sina Mardfar, Mona Fazel Ghaziyani, Arman Saeedi Vahdat, Davood Khezerloo","doi":"10.1093/rpd/ncaf063","DOIUrl":"10.1093/rpd/ncaf063","url":null,"abstract":"Objectives: Cone beam computed tomography (CBCT) scans, essential for medical imaging, expose patients to radiation. To ensure safety, this study aimed to establish typical diagnostic reference levels (DRLs) and estimate median organ doses and cancer risks associated with CBCT scans in the Tabriz region, Iran.Results: Patient data from 196 individuals undergoing common CBCT procedures were collected. Effective and organ doses were estimated using VirtualDoseCT software. Lifetime attributable risk of cancer incidence was estimated using BEIR VII report. DRL values were established based on gender and indication. Indication based values were 341 mGy.cm2 for implants, 387 mGy.cm2 for lesions, and 342 mGy.cm2 for sinus scans. Effective doses (EDs) were analyzed, yielding values of 30 μSv for males and 20 μSv for females. Organ doses analysis revealed that salivary glands received the highest dose, while thymus had the lowest in both genders. Lifetime attributable risk of cancer incidence was evaluated and found to be 0.0027 in 100 000 for male patients and 0.0084 in 100 000 for female patients.Conclusions: The study highlights the importance of minimizing radiation exposure in CBCT examinations to reduce the risk of cancer and heritable effects. Tailored scan protocols and optimization measures can enhance patient safety by lowering doses. The results offer valuable guidance for dental and maxillofacial imaging practices on radiation doses and DRLs in CBCT examinations.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"641-647"},"PeriodicalIF":0.8,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144174624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Issues in monitoring orthopedic surgeons with active personal dosemeters when exposed to pulsed X-ray fields during orthopedic procedures. 在骨科手术过程中暴露于脉冲x射线场时使用主动个人剂量计监测骨科医生的问题。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2025-06-19 DOI: 10.1093/rpd/ncaf061

Munehiko Kowatari, Koichi Nakagami, Yasukazu Hijikata, Kazuta Yamashita, Yuta Hirai, Satoru Matsuzaki, Takashi Moritake, Tomoya Tsuji, Hayo Zutz, Steffen Ketelhut, Oliver Hupe

{"title":"Issues in monitoring orthopedic surgeons with active personal dosemeters when exposed to pulsed X-ray fields during orthopedic procedures.","authors":"Munehiko Kowatari, Koichi Nakagami, Yasukazu Hijikata, Kazuta Yamashita, Yuta Hirai, Satoru Matsuzaki, Takashi Moritake, Tomoya Tsuji, Hayo Zutz, Steffen Ketelhut, Oliver Hupe","doi":"10.1093/rpd/ncaf061","DOIUrl":"10.1093/rpd/ncaf061","url":null,"abstract":"It is crucial to monitor healthcare workers' radiation exposure, especially given the increasing reliance on X-ray imaging technologies. In response to new evidence that the threshold for lens opacity is lower than previously thought, the International Commission on Radiological Protection (ICRP) has revised the annual dose limit for exposure to the lens of the eye. After the revision of the annual eye lens dose limit, the new survey on the dosemeter wearing rate was conducted in Japan. The result showed that despite the presence of monitoring protocols, the dosemeter wearing rate among healthcare workers was still low. Compliance often lacked robust verification measures, especially in smaller medical facilities. Active personal dosemeters (APDs) are commonly used in Japan, although studies suggest that they may underestimate exposure in certain settings, such as pulsed X-ray fields. Passive dosemeters, on the other hand, serve as legal dosemeters, offering a more accurate assessment of radiation exposure. This article addresses issues related to the monitoring of healthcare workers using APDs and clarifies concerns regarding the use of APDs by orthopedic surgeons during procedures involving high-dose X-ray exposure. A series of performance tests suggested that the APDs worn by orthopedic surgeons, who are often exposed to higher dose rates near patients, may underestimate radiation levels during procedures. This underestimation occurs because the surgeons are exposed to pulsed, scattered X-ray fields with energies ranging from 20 and 100 keV. The results also suggest monitoring techniques should be improved to ensure the safety of healthcare workers.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"663-671"},"PeriodicalIF":0.8,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144234955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of external radiation exposure in patients treated with 177Lu-PSMA and radiation safety assessment of the patient caregivers. 177Lu-PSMA治疗患者的外辐射暴露评价及患者护理人员的辐射安全性评价。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2025-06-19 DOI: 10.1093/rpd/ncaf059

Peyman Sheikhzadeh, Saeed Farzanehfar, Mehrshad Abbasi, Zeinab Bayat, Mohammadreza Abdolmaleki, Fereshteh Koosha, Nima Kasraie

引用次数: 0

Radiation exposure reduction using an equalization filter during percutaneous coronary intervention: a preliminary study. 经皮冠状动脉介入治疗期间使用均衡滤光器减少辐射暴露：初步研究。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2025-06-19 DOI: 10.1093/rpd/ncaf062

Nao Ichikawa, Atsushi Fukuda, Takuma Hayashi, Yosuke Hattori, Kosuke Matsubara

引用次数: 0

Effects of neutron, γ-ray, and neutron-γ-ray mixed radiations on chromosomal aberrations in peripheral blood lymphocytes of two males. 中子、γ射线和中子-γ射线混合辐射对两种男性外周血淋巴细胞染色体畸变的影响。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2025-06-19 DOI: 10.1093/rpd/ncaf056

Zhongxin Zhang, Jiamei Bai, Qianqian Meng, Ruifeng Zhang, Xuhong Dang, Xiaoming Liu, Yayi Yuan, Hongyan Liu, Yue Ren, Biao Yang, Zhikai Duan

{"title":"Effects of neutron, γ-ray, and neutron-γ-ray mixed radiations on chromosomal aberrations in peripheral blood lymphocytes of two males.","authors":"Zhongxin Zhang, Jiamei Bai, Qianqian Meng, Ruifeng Zhang, Xuhong Dang, Xiaoming Liu, Yayi Yuan, Hongyan Liu, Yue Ren, Biao Yang, Zhikai Duan","doi":"10.1093/rpd/ncaf056","DOIUrl":"10.1093/rpd/ncaf056","url":null,"abstract":"This study aimed to explore the relative biological effectiveness (RBE) of monoenergetic neutrons and the interactions of mixed radiation by investigating the biological effects of neutron, 137Cs γ-ray, and neutron-γ-ray mixed radiations on chromosomal aberrations in human peripheral blood lymphocytes. Human peripheral blood lymphocytes were treated with neutrons from the Intensive Deuterium and Tritium Neutron Source Science Facility and a gamma source from the 137Cs γ-ray source of the Chinese Academy of Sciences for follow-up experimental results. The chromosomal aberrations were analyzed in lymphocytes exposed to neutron, 137Cs γ-ray, and mixed radiations, and the RBE values of neutron radiation were calculated. The statistical distribution of chromosomal aberrations was tested using the dispersion index and Mann-Whitney Utest for all doses to conform to a Poisson distribution. The χ2test was used to compare the yields of dicentric and centromeric rings among different radiation groups and evaluate the goodness of fit of the dose-response curve. We used the ztest to evaluate the significance of the equation coefficients. The RBE for 10 dicentrics per 100 cells was 2.8 for neutron radiation. For 20 dicentrics per 100 cells, the respective value was 2.05. The yields of dicentric and centromeric rings significantly increased in the mixed radiation group compared with the 137Cs γ-ray group at the dose of 0.7 Gy. The considerations of the dose dependence of RBE and the intercellular interactions were indispensable for the precise estimation of the biological effect of neutron treatment on tumors.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"613-621"},"PeriodicalIF":0.8,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144111567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unidimensional neutron shielding model for VARSKIN. VARSKIN的一维中子屏蔽模型。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2025-06-19 DOI: 10.1093/rpd/ncaf052

Zane Tucker, Charlotte Rose

引用次数: 0

Fluorescence X-ray field for radiation dosemeters calibration. 用于辐射剂量计校准的荧光x射线场。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2025-06-19 DOI: 10.1093/rpd/ncaf060

Tomoya Tsuji, Hiroshi Yoshitomi, Fuminobu Sato, Yoshihiko Tanimura

引用次数: 0